SendinBlue Dynamic fields

Hi All,

Iv moved over to sendinblue as my preferred campaign emailer platform.
when sending an email from using sendinblue, how can you add dynamic fields like “Name” or “Order amount” based on the current user.
I see it gives you an option to choose a template, but u cant edit tags in the template

im running the sendinblue SMTP and sendinblue plugins for the API connection between sendinblue SMTP and sendinblue and